AbstractExtJsTree.php

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<?php
namespace TYPO3\CMS\Backend\Tree;

abstract class AbstractExtJsTree extends \TYPO3\CMS\Backend\Tree\AbstractTree {

    protected $stateProvider = NULL;

    public function setStateProvider(\TYPO3\CMS\Backend\Tree\AbstractTreeStateProvider $stateProvider) {
        $this->stateProvider = $stateProvider;
    }

    public function getStateProvider() {
        return $this->stateProvider;
    }

    abstract public function getNextTreeLevel($nodeId, $nodeData);

}